00240-0329 BU  488AB

 
 
00h 23m 59.82s -03 28' 31.0" P.A. 340.00 sep 3.3 mag 7.41,10.28 Sp A2V dist. 131.93 pc (430.36 l.y.)
 
 
Coord 2000
00240-0329
Discov num
BU  488
Comp
AB
Coord arcsec 2000
00 23 59.82 -03 28 31.0
Date first
1878
Date last
2016
Obs
22
Pa first
348
Pa last
340
P.A. Now (θ)
340°
Sep first
3.3
Sep last
3.3
Sep. Now (ρ)
3.3"
Mag pri
7.41
Mag sec
10.28
delta mag (ΔM)
2.87
Spectral class
A2V (white)
Pri motion ra
+020
Sec motion ra
+019
Pri motion dec
-012
Sec motion dec
-006
Notes
N W (See Notes, )
rPM=0.261 (< 0.3, Physical double)
This double is physical.
 
 
00240-0329 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 00 23 60 -03 28 31 BU 488 AB 2016 22 340 3.3 7.41 10.28 2.87 <===
Show 00 23 60 -03 28 31 BU 488 AC 2015 5 58 40.3 7.41 12.40 4.99
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
340.1
Precise sep
3.331
Constellation
Hydra
HIP
1900
Tycho2
4668-00492-1
Gaia DR2
2540269475350780544
HD
1978
BD
BD-04 40
Distance
131.93
Distance ly
430.36
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00240-0329 BU 488 AB 2002 18 341 3.4 7.41 10.28 A2V 002359.82-032831.0
00240-0329 BU 488 AB 2015 21 344 3.2 7.41 10.28 A2V N 002359.82-032831.0

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